fatcat
adj.
[美国俚语]有财有势的;
（因富裕或地位高而）自鸣得意的;
自命不凡的;
例句:
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Picture the scene - a group of fatcat suits fling coins at the nation's revered troubadours, shouting 'Dance monkeys dance!
来自BBC
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A fat cat is a person with a lot of money.
fatcat(肥猫)意思是很有钱的人.
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The resultant inflation would be a big problem for Obama's fatcat banker friends, that's why not.
来自WSJ